Now showing items 16300-16319 of 35840

  • HR 1099 - New Bright RS CVn Variable 

    Bopp, B. W.; Fekel, F. (1976)
  • HR 8257: A Three-Dimensional Orbit And Basic Properties 

    Fekel, Francis C.; Boden, Andrew F.; Tomkin, Jocelyn; Torres, Guillermo (2009-04)
    We have used interferometric and spectroscopic observations of HR 8257 to determine a three-dimensional orbit of the system. The orbit has a period of 12.21345 days and an eccentricity of 0.2895. The masses of the F0 and ...
  • HRFOR Update on the Human rights situation during April 1996 

  • Hrotsvithae Opera by H. Homeyer 

    Michael, Wolfgang F. (Speculum, 1970)
  • HST And Optical Data Reveal White Dwarf Cooling, Spin, And Periodicities In GW Librae 3-4 Years After Outburst 

    Szkody, Paula; Mukadam, Anjum S.; Gansicke, Boris T.; Henden, Arne; Sion, Edward M.; Townsley, Dean; Chote, Paul; Harmer, Diane; Harpe, Eric J.; Hermes, J. J.; Sullivan, Denis J.; Winget, D. E. (2012-07)
    Since the large amplitude 2007 outburstwhich heated its accreting, pulsatingwhite dwarf, the dwarf nova system GW Librae has been cooling to its quiescent temperature. Our Hubble Space Telescope ultraviolet spectra combined ...
  • HST-COS Observations Of AGNs. II. Extended Survey Of Ultraviolet Composite Spectra From 159 Active Galactic Nuclei 

    Stevans, Matthew L.; Shull, J. Michael; Danforth, Charles W.; Tilton, Evan M. (2014-10)
    The ionizing fluxes from quasars and other active galactic nuclei (AGNs) are critical for interpreting their emissionline spectra and for photoionizing and heating the intergalactic medium. Using far-ultraviolet (FUV) ...
  • HST-COS Observations of Hydrogen, Helium, Carbon, and Nitrogen Emissions From the SN 1987A Reverse Shock 

    France, Kevin; McCray, Richard; Penton, Steven V.; Kirshner, Robert P.; Challis, Peter; Laming, J. Martin; Bouchet, Patrice; Chevalier, Roger; Garnavich, Peter M.; Fransson, Claes; Heng, Kevin; Larsson, Josefin; Lawrence, Stephen; Lundqvist, Peter; Panagia, Nino; Pun, Chun S. J.; Smith, Nathan; Sollerman, Jesper; Sonneborn, George; Sugerman, Ben; Wheeler, J. Craig (2011-12)
    We present the most sensitive ultraviolet observations of Supernova 1987A to date. Imaging spectroscopy from the Hubble Space Telescope-Cosmic Origins Spectrograph shows many narrow (Delta upsilon similar to 300 km s(-1)) ...
  • The HST/ACS Coma Cluster Survey. VIII. Barred Disk Galaxies In The Core Of The Coma Cluster 

    Marinova, Irina; Jogee, Shardha; Weinzirl, Tim; Erwin, Peter; Trentham, Neil; Ferguson, Henry C.; Hammer, Derek; den Brok, Mark; Graham, Alister W.; Carter, David; Balcells, Marc; Goudfrooij, Paul; Guzman, Rafael; Hoyos, Carlos; Mobasher, Bahram; Mouhcine, Mustapha; Peletier, Reynier F.; Peng, Eric W.; Kleijn, Gus V. (2012-02)
    We use high-resolution (similar to 0.'' 1) F814W Advanced Camera for Surveys (ACS) images from the Hubble Space Telescope ACS Treasury survey of the Coma cluster at z similar to 0.02 to study bars in massive disk galaxies ...
  • HTC Brochure 

    Harriet Tubman Collective (HTC) (2011-06)
  • HTS Trapped field magnet based motors for naval applications 

    Davey, K.; Weinstein, R. (2006-05)
    As the Navy conve1is to all electric ships, it is investigating ways to reduce the size and weight of electric propulsion motors. The fundamental challenge is to achieve high torque and low speed in a small motor. To achieve ...
  • Htw8 final question mark 

    Nicosia, Gerald (2000-08-01)
  • Huaca Pintada Of Illimo 

    Schaedel, Richard P. (1978)
  • Hubble Space Telescope And Ground-Based Observations Of The Type Iax Supernovae SN 2005Hk And SN 2008A 

    McCully, C.; Jha, Saurabh W.; Foley, Ryan J.; Chornock, Ryan; Holtzman, Jon A.; Balam, D. D.; Branch, D.; Filippenko, Alexei V.; Frieman, J.; Fynbo, J.; Galbany, Lluis; Ganeshalingam, Mohan; Garnavich, Peter M.; Graham, M. L.; Hsiao, Eric Y.; Leloudas, G.; Leonard, D. C.; Li, W. D.; Riess, Adam G.; Sako, Masao; Schneider, Donald P.; Silverman, Jeffrey M.; Sollerman, Jesper; Steele, Thea N.; Thomas, R. C.; Wheeler, J. Craig; Zheng, C. (2014-05)
    We present Hubble Space Telescope (HST) and ground-based optical and near-infrared observations of SN 2005hk and SN 2008A, typical members of the Type Iax class of supernovae (SNe). Here we focus on late-time observations, ...
  • Hubble Space Telescope And Ground-Based Observations Of V455 Andromedae Post-Outburst 

    Szkody, Paula; Mukadam, Anjum S.; Gansicke, Boris T.; Henden, Arne; Sion, Edward M.; Townsley, Dean M.; Christian, Damian; Falcon, Ross E.; Pyrzas, Stylianos; Brown, Justin; Funkhouser, Kelsey (2013-09)
    Hubble Space Telescope spectra obtained in 2010 and 2011, 3 and 4 yr after the large amplitude dwarf nova outburst of V455 And, were combined with optical photometry and spectra to study the cooling of the white dwarf, its ...
  • Hubble Space Telescope Emission Line Galaxies At Z Similar To 2: The Ly Alpha Escape Fraction 

    Ciardullo, Robin; Zeimann, Gregory R.; Gronwall, Caryl; Gebhardt, Henry; Schneider, Donald P.; Hagen, Alex; Malz, A. I.; Blanc, Guillermo A.; Hill, Gary J.; Drory, Niv; Gawiser, Eric (2014-11)
    We compare the H beta line strengths of 1.90 < z < 2.35 star-forming galaxies observed with the near-IR grism of the Hubble Space Telescope with ground-based measurements of Ly alpha from the HETDEX Pilot Survey and ...
  • Hubble Space Telescope Fine Guidance Sensor Parallaxes For Four Classical Novae 

    Harrison, Thomas E.; Bornak, Jilian; McArthur, Barbara E.; Benedict, G. Fritz (2013-04)
    We have used data obtained with the Fine Guidance Sensors on the Hubble Space Telescope to derive precise astrometric parallaxes for four classical novae: V603 Aql, DQ Her, GK Per, and RR Pic. All four objects exceeded the ...
  • Hubble Space Telescope Near-Ultraviolet Spectroscopy Of The Bright CEMP-No Star BD+44 Degrees 493 

    Placco, Vinicius M.; Beers, Timothy C.; Roederer, Ian U.; Cowan, John J.; Frebel, Anna; Filler, Dan; Ivans, Inese I.; Lawler, James E.; Schatz, Hendrik; Sneden, Christopher; Sobeck, Jennifer S.; Aoki, Wako; Smith, Verne V. (2014-07)
    We present an elemental-abundance analysis, in the near-ultraviolet (NUV) spectral range, for the extremely metal-poor star BD+44 degrees 493 a ninth magnitude subgiant with [Fe/H] = -3.8 and enhanced carbon, based on data ...
  • Hubble Space Telescope Spectroscopy Of Brown Dwarfs Discovered With The Wide-Field Infrared Survey Explorer 

    Schneider, Adam C.; Cushing, Michael C.; Kirkpatrick, J. Davy; Gelino, Christopher R.; Mace, Gregory N.; Wright, Edward L.; Eisenhardt, Peter R.; Skrutskie, M. F.; Griffith, Roger L.; Marsh, Kenneth A. (2015-05)
    We present a sample of brown dwarfs identified with the Wide-field Infrared Survey Explorer (WISE) for which we have obtained Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) near-infrared grism spectroscopy. The ...
  • A Hubble Space Telescope Transit Light Curve For GJ 436B 

    Bean, J. L.; Benedict, G. F.; Charbonneau, D.; Homeier, D.; Taylor, D. C.; McArthur, B.; Seifahrt, A.; Dreizler, S.; Reiners, A. (2008-08)
    We present time series photometry for six partial transits of GJ 436b obtained with the Fine Guidance Sensor instrument on the Hubble Space Telescope (HST). Our analysis of these data yields independent estimates of the ...
  • Hubo 6 oferentes para la obra 

    El Tribuno (2009-12-10)